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United States Patent | 5,180,205 |
Shoop | January 19, 1993 |
An improvement on a towing assembly of a 5th wheel trailer and a pick-up truck which has a 5th wheel hitch in its bed. The improvement is a tapered, streamlined, aerodynamic extension at the front of the 5th wheeler trailer. In addition to reducing the power required to tow the trailer, increasing the fuel efficiency of the towing assembly, greatly increasing the towed stability of the trailer; the improvement adds to the storage and sleeping space available to users of the trailer. Access to the extension is available through a separate exterior access door as well as through the original front window opening of the trailer. The improvement is useful for both retrofit and original equipment purposes.
Inventors: | Shoop; Ralph E. (RD #1 Box 251, Ashland, PA 17921) |
Appl. No.: | 657711 |
Filed: | February 18, 1991 |
Current U.S. Class: | 296/180.2; 296/168; 296/180.4 |
Intern'l Class: | B60P 001/00; B62D 035/00 |
Field of Search: | 296/181,168,180.4,180.1,164,26,172,176,180.5 |
1880844 | Oct., 1932 | Curtiss | 296/181. |
3390896 | Jul., 1968 | Philapy | 296/168. |
3415566 | Dec., 1968 | Kerrigan | 296/180. |
3817545 | Jun., 1974 | Ward | 296/168. |
4170378 | Oct., 1979 | Jacobsen | 296/180. |
4640544 | Feb., 1987 | McNamara et al. | 296/181. |
4818015 | Apr., 1989 | Scanlon | 296/180. |
Foreign Patent Documents | |||
3408947 | Feb., 1986 | DE | 296/156. |
2434052 | Apr., 1980 | FR | 296/180. |
2466381 | Apr., 1981 | FR | 296/168. |
2481666 | Nov., 1981 | FR | 296/180. |